I had a guy contact me selling me his little bit used BM51. He showed me pic, and gave me his Paypal and I payed him. He messaged me yesterday saying he got the money and was gonna ship today. I replied four hours ago asking if he shipped it, and if doesn't reply by tomorrow morning I'm gonna get really worried. Did I do this deal wrong? This is my first time attempting to buy a knife from forums, do people get scammed sometimes with no hope of getting their money back?